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52053720537 = 37131711216057
BaseRepresentation
bin110000011110101001…
…001011110111011001
311222100201020222120110
4300132221023313121
51323101223024122
635525123514533
73521640216120
oct603651136731
9158321228513
1052053720537
1120091a71755
12a108828a49
134ba73a5a90
14273b3b0ab7
151549d1990c
hexc1ea4bdd9

52053720537 has 32 divisors (see below), whose sum is σ = 90446291712. Its totient is φ = 25841793024.

The previous prime is 52053720527. The next prime is 52053720539. The reversal of 52053720537 is 73502735025.

It is not a de Polignac number, because 52053720537 - 218 = 52053458393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 52053720495 and 52053720504.

It is not an unprimeable number, because it can be changed into a prime (52053720539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5603388 + ... + 5612669.

It is an arithmetic number, because the mean of its divisors is an integer number (2826446616).

Almost surely, 252053720537 is an apocalyptic number.

It is an amenable number.

52053720537 is a deficient number, since it is larger than the sum of its proper divisors (38392571175).

52053720537 is a wasteful number, since it uses less digits than its factorization.

52053720537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11216097.

The product of its (nonzero) digits is 220500, while the sum is 39.

The spelling of 52053720537 in words is "fifty-two billion, fifty-three million, seven hundred twenty thousand, five hundred thirty-seven".

Divisors: 1 3 7 13 17 21 39 51 91 119 221 273 357 663 1547 4641 11216057 33648171 78512399 145808741 190672969 235537197 437426223 572018907 1020661187 1334710783 2478748597 3061983561 4004132349 7436245791 17351240179 52053720537